No, I was thinking of blue construction geometry, but your example is far better, because there is no workaround.bejant wrote: ↑Sun Feb 17, 2019 10:32 amSometimes we have to do it, for example when using an edge that is a Link To External Geometry. The magenta geometry can't be used directly to create a Feature, so we have to create a white segment on it (@chrisb, is that what you are explaining in the second paragraph of your reply?).

In fact you need only 3 angles for a hexagon. It can be explained geometrically, but we could do some DOF math insteadBut, it might be handy if the Sketcher > Create Polygon tool had some toggle where the Polygon would be created with Equality Constraints applied to the edges and Angle Constraints of equal value applied to the edges at each corner except one (I'm not sure).

- a hexagon - as created now - has 4 DOF

- a (construction) circle has 3 DOF

- each point-on-object, of which we have 6, has one DOF

If we remove the construction circle we add 6 DOF for the now missing point-on-object constraints and subtract 3 DOF for the circle

So to reach the same number of DOF we have to add 3 angular constraints, where each consumes 1 DOF.

(Boy I'm glad I did all this DOF stuff in my document).